I stayed 2 nights at Fuyi's place. Fuyi met me at the pool at check in. Do not go to the office. Everything was as described, which means it was great. I did not use the pool or fitness room.
The only items to note is that the MRT is a 1.2 KM walk from the room. Because I mostly use the BTS and not the MRT, I ended up taking Uber to the BTS at Sala Daeng (60 TBH).
In addition, it should be noted that the bed is standard Thai which means it is hard by western standards. It didn't bother me but if you are sensitive to such things, beware.
Who is room for: Independent single travelers that want to stay in a local Thai neighborhood. Also this would be good who enjoys a quiet stay.
Who is this Stay Not for: Any more than a single traveler may find the accomodations cramped. Also, this is not for someone who is loud in the room by talking or with the TV. This is a VERY quiet area and building.
I would definitely stay again in Fuyi's place if my travels take me again to Bangkok.